Miniaturized Sun Sensor

Technical Specifications

Functional Output Sun direction in spacecraft frame
Performance (over full thermal & dynamic environment) Angular accuracy (including tolerance to solar flares, SEU, albedo and straylight) Margin: 70% (=100%-30%)0.16-0.5°
Field of View full cone >180°
Interfaces Full system Mass Less than 80 grams
Sensor Dimensions (without electronics) Max 35mm in all directions (included packaging)
Electronic Dimensions 25mm + packaging
Average power consumption <10 mW Supply voltage 5V internal, 28V or 50V bus voltage (can be tailored) Data interface Digital Design and PA Redundancy More than double, almost 100% triple Lifetime ≥15 years in GEO Thermal cycles >7000
Reliability <100FIT @30°C
Radiation Electronic components: 100 Krad
Optics: 300Krad
Detector (if any): 1Mrad
SEU tolerant
ITAR ITAR free
Environment Dynamics Up to 11300S/s
Temperature Storage and operational:
-40 to +75°C
Extension for Solar Array accommodation: -80 to +100°C (TBC)
Vibration and shock Sine: 20 g peak
Random: 27 g RMS
Shock: 3000 g from 2 to 10kHz